FEM2D_POISSON_SPARSE_LAKE is a MATLAB library which sets up the geometry and data for the "lake" problem, which models a simulated lake with an island. The problem is suitable for solution by fem2d_poisson_sparse.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
FEM2D_POISSON_SPARSE_LAKE is available in a C++ version and a FORTRAN90 version and a MATLAB version.
FEM2D_POISSON_SPARSE, a MATLAB program which solves the steady (time independent) Poisson equation on an arbitrary 2D triangulated region using MATLAB's sparse solver.
FEM2D_POISSON_SPARSE_BAFFLE, a MATLAB library which defines the geometry of a rectangle channel containing 13 hexagonal baffles, as well as boundary conditions for a given Poisson problem, and is called by fem2d_poisson_sparse as part of a solution procedure.
FEM2D_POISSON_SPARSE_ELL, a MATLAB library which defines the geometry of an L-shaped region, as well as boundary conditions for a given Poisson problem, and is called by fem2d_poisson_sparse as part of a solution procedure.
TRIANGULATION_ORDER3_CONTOUR, a MATLAB program which makes a contour plot of scattered data, or of data defined on an order 3 triangulation. In particular, it can display contour plots of scalar data output by fem2d_poisson or fem2d_poisson_sparse.
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